Pumping mechanism for vacuum-cleaners.



V. WIN QUIST. PUMPING MECHANISM FOR VACUUM CLEANERS.

APPLICATION FILED. MAR. 29, 1912.

Patented Mar. 4, 1913.

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UNITED STATES PATENT OFFICE.

VICTOR'WIN'QUIST, OF ROCKFORD, ILLINOIS, ASSIGNOR OF ONE-THIRD TO VERNER NORRLANDER AND ONE-THIRD TO JOHN A. ANDERSON, BOTH OF ROCKFORD, ILLI- NOIS.

PUMPING MECHANISM FOR VACUUM-CLEANERS.

Patented Mar. 4:, 1913. Serial No. 687,240.

Fig. 3 is a plan view. Fig. 4 is an under face view. Fig. 5 is a front elevation. Fig. 6 is a section on line a a Fig. 3. Fig. 7 is a section on line b b Fig. 1.

The cleaner-illustrated in the comprises two bellows suitabl separated, the stationary walls 1 and 2 o the bellows have their forward ends connected to the cleaning tool 3 by the brackets 4 extending from the cleaning tool. the stationary walls of the bellows are connected to a cross-bar 5 by the projections 6 extending therefrom. This cross-bar has two rearwardly extending projections 6% which support an axle 7, and the cross-bar has two slots 8 and 8. On the axle 7 are mounted two wheels 9 and 10 provided with double cam grooves 12 and 13 respectively.

- The-wheel's" are connected in this instance,

by a center section 14. The movable walls 15 and 16 of the bellows are connected to the stationary walls thereof by the collapsible leather edging 17. To the movable walls 15 and 16 of the bellows are connected brackets 18 and 19 respectively and eachhas an extension 20 and 21 respectively which are guided in the slots 8 and 8 respectively formed in the cross-bar, and these extensions support balls 22 and 23 respectively which are located in the double cam grooves 12 and 13 respectively.

A casing 24. has its forward end connected with the tube extension 25 of the cleaning tool. This tube 25 extends a short distance within the end of the casing. Tubes 26 and 27 connect the stationary walls land 2 with the casing 24 and each tube is provided with drawin sand 16 is provided with an outlet valve 29. This casing has an open end which supports a packing 30 Fig. 6. casing is located a drawer 31 forming a dust receptacle. 'This drawer has a flanged end 32 which closes against the packing 30. The inner end of the drawer is provlded with an inclined screen 33 having a closed section 34 at its lower end. A tube 35 is supported by the late 36 extending across the inner upper ace of the drawer, and when the drawer is in place in the casing this tube 35 will telescope with the tube extension 25 of the cleaning tool extending within the casing, thereby forming a comrojecich is the interior of the drawer.' To the tions 6% are pivoted a yoke 37 to w connected a handle 38.

In use, the cleaner is pushed over the floor, carpet or rugs to be cleaned, which will rotate the wheels 9 and 10 and the The rear" ends-of cams 12 and 13 will eng'a e the rollers 22 and 23 and move the mova le walls 15 and 16 of the bellows toward and from the stationary walls 1 and 2 of the bellows. This movement of the bellows will produce suction through the screen 33 into the drawer, of the tubes 35 and 25 to the The air is exhausted from way of the valves 29. By. the employment of the two bellows, one is exhausting while the other is creating suction, and so on alternately.

I claim as myinvention.

and by means engaged in the groove of one of the'wheels. In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

, VICTOR WINQUIST. Witnesses:

A. O. BEEEL, E, D. E. N. BEHEL'.

Within the the tubes 26 and 27 through.

Ina structure of the character set forth, the combination with a supporting frame munication between the cleaning tool and cleaningtooL- the bellows by "'1' arm extending through one of the slots and 

